question

Hi Matthijs ,

I installed v2.60~26 because I wanted to test the grid feed-in limit with my one phase 24V ESS system (with activated phase compensation).

I have a 6 year old Multiplus 3000/24 (v474), VenusGX, ET340, BMV712, Smart MPPT100/50 (1,1kWp), 1200Ah OPzV battery bank and an ACout coupled Fronius Galvo inverter (1,8kWp).

• Update: After playing around with the Grid feed-in settings, I found out that when I switch ON the "DC-coupled PV feed in" and switch it OFF a minute later, the AC-coupled PV grid feed-in limit does not work anymore! The Fronius inverter refuse to ramp up or ramp down and works with full power.
  After switching the Fronius completely off and on, the limit works again. Maybe it would also work with rebooting the Venus GX but I didn't try it yet.
  
  It does not work with this settings:
  
  
  
  
• As soon when I switch on the DC-coupled function, my Multiplus battery voltage settings are increased by +0,2V...
  „Float“ state should be 28,2V and it is increased to 28,4V, „Absorption“ state should be 29,2V and it is increased to 29,4V!
  When swiching off the DC-coupled PV feed-in excess function, the values immediately go back to the configured values. Is this +0,2V offset intended?
  
  DC-coupled PV feed-in is ON (Float=28,4V):
  DC-coupled PV feed-in is OFF (Float goes back to 28,2V as it should be):
  
  
  
• This is just a bit related to the grid feed-in limit, but you should provide a way to significantly increase the ESS regulation speed when compensating other phases.
  
  A 2kW load on the Multiplus L1 phase is instantly compensated and shown on the remote console within 1-2 seconds –> very good!
  
  BUT my system needs about 13 seconds to compensate a 2000W load on another phase (L2/L3). When switching it off, it shoots all the power into the grid for about 10 seconds – despite the 300W grid feed-in limit (see screen).
  I do not understand this, because all necessary and correct metering values are shown on the remote console after ~2 seconds.
  So why does the ESS do not trigger the superfast Multiplus and needs another eternal 10 seconds to fully react on changing values? Drinking a coffee maybe ;-)
  More people are discussing this speed issue in this post:
  https://community.victronenergy.com/questions/51697/victron-ess-et112-slow-response.html

Best regards

Rainer

Hi Mathijs,

The CCGX was showing an exclamation mark in a triangle which I guess is an indication of notifications. Under notifications, there were two grid lost events. Clicking on them did nothing.

I attempted a reboot from the menu which also did nothing. Connecting in with ssh and "reboot -f" did the job.

I've noticed similar issues where online firmware updates would do nothing and also could not reboot. This has been going on for a few releases now but possibly always 2.60~xx.

Regards,

John

We have asked on several occasions to enable more options to plan the battery charge from the grid depending on more variables (weather forecast for example). Would it be possible to enable via modbus, change ESS mode? (with battery life, without battery life, keep batteries charged). Thank you. 

Regards
Antonio

Hi

Just being testing with Ver 2.60.26 with a Mulitplus2 3000kW 48V with 10kw Pylon battery bank

with AC coupled Fronius 3kW grid tied inverter and 2x Mastervolt grid tied inverter AC coupled.

All going fine with no issues to date, very stable in operation.

Regards

Rob D

NZ

@mvader (Victron Energy)Hi Matthijs this might be off topic as I mentioned it already in v2.60~22 and v2.60~23 so maybe you are already aware of it, please just delete this post if it's not revelant here.

I'm still seeing MPPT's ramp down from 1500w each to zero when ESS moves to ESS#1: SOC is low.

All 4000 watts of power is taken from the grid and the 3000w plus solar power is ramped down to zero instead of only taking 1000w from grid to supliment the 3000w

Best regards

Markus

Hello Matthijs,

There is a display issue in Vehicle demo 2 mode. We have already 3 tanks connected, when I enable vehicle demo 2 mode, then there are 7 tanks on the motorhome overview screen, which tank level display a bit strange.

This is Cerbo with touch 50 with V2.60~26. Should be a existing bug from beginning?

Regards

Alan

@mvader (Victron Energy), hello Mathijs, after installing the Venus OS v2.60~26 a few days ago, I noticed a minor issue. I have the Venus GX installed on a yacht and it is connected to a NMEA2000 network. Part of the network is on 24/7 for monitoring AC/DC and tank values. I monitor this with a Czone NMEA2000 display. In the favourites setup of the display I can change the label of most values, for example to Shore Power and Quattro out. After installing the Venus OS v2.60~26, it added additional DC values and changed some of the labels for the original DC values. It now shows 4 DC values. The first one with the label Battery, which was actually incorrect and it is the only one that I was able to change, in this case to MPPT PV. It shows the DC values of the PV panels. Then I there are 3 more DC values, all labeled Victron DC and those labels I am not able to change. The point here is that it is a bit confusing to see 3 times Victron DC and then having to figure out which is what.

In above picture, you see the 4 DC values. First, the MPPT PV, then 1st Victron DC is DC values of the Quattro (currently charging). The 2nd is the battery side of the MPPT, currently also charging. The 3rd are the DC values from the BMV. As you see it's inside is green and when pressing Enter button on display, I can see SOC and Time to go.

Is it possible at some time to have a better indication of the several DC values? Either by default when installing Venus OS, or by enabling the possibility to change the label by 3rd party, as in my case the Czone display (strange that I can change one and not the others).

I have not noticed any other issues.